0,0 → 1,65 |
/**************************************************************************** |
* Copyright (C) 2009-2010 by Claas Anders "CaScAdE" Rathje * |
* admiralcascade@gmail.com * |
* Project-URL: http://www.mylifesucks.de/oss/c-osd/ * |
* * |
* This program is free software; you can redistribute it and/or modify * |
* it under the terms of the GNU General Public License as published by * |
* the Free Software Foundation; either version 2 of the License. * |
* * |
* This program is distributed in the hope that it will be useful, * |
* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
* GNU General Public License for more details. * |
* * |
* You should have received a copy of the GNU General Public License * |
* along with this program; if not, write to the * |
* Free Software Foundation, Inc., * |
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
****************************************************************************/ |
|
/* |
* structs 'n union for easy SPI transfer |
*/ |
typedef struct { |
int16_t ampere; |
int32_t mah; |
int16_t volt; |
} __attribute__((packed)) SPI_strom_data_t; |
|
typedef struct { |
uint8_t c[10]; |
uint8_t chk; |
} __attribute__((packed)) SPI_char_buffer_t; |
|
union SPI_buffer_t { |
SPI_strom_data_t data; |
SPI_char_buffer_t buffer; |
}; |
|
volatile union SPI_buffer_t SPI_buffer; |
|
/** |
* SPI interrupt handler |
*/ |
ISR(SPI_STC_vect); |
|
/** |
* init the SPI as master |
*/ |
void SpiMasterInit(void); |
|
/** |
* check if SPI transfer is still busy |
*/ |
int TransferIsBusy(void); |
|
/** |
* start a new transfer with length <len> |
*/ |
void StartTransfer(uint16_t); |
|
/** |
* send next command through spi |
*/ |
void spi_send_next(); |